DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT An Improved Upper Bound for Information Theoretic Private Information Retrieval
ثبت نشده
چکیده
The private information retrieval (PIR) primitive has received a significant amount of attention from the scientific community since it was first proposed by Chor et al. with other cryptographic primitives [6, 12] and improved upper bounds [3, 16] have been obtained. In this paper, we continue along this path and give an improved upper bound for information theoretic PIR. Our protocol and proofs extend the algebraic methods of Ishai and Kushilevitz [16].
منابع مشابه
Numerical Study of a Pipe Extension Effect in Draft Tube on Hydraulic Turbine Performance
Draft tube of Francis type hydraulic turbine usually consists of: cone, elbow and diffuser. On the contrary, in some power stations an extra pipe should be added to the draft tube at the bottom of cone because of installation limitation. In this paper, this special case has been numerically studied. To this end CFD analysis was applied to simulate all parts of hydraulic turbine. A homogeneous m...
متن کاملمقاومت کششی ، مقاومت ویژه و توان مالبندی موردنیاز گاو آهن قلمی (چیزل) ، در سطوح مختلف رطوبت خاک و عمق شخم
The effects of three levels of soil moisture content (8-10, 10-12 and 12-14% d.b.) and three levels of plowing depth (15, 20 and 25 cm) on draft, specific draft and drawbar power requirement of a 7-shank chisel plow in a clay loam soil were investigated. The experimental design was a randomized complete block design with a 3×4 factorial. The effect of plowing depth on all of the parameters ment...
متن کاملتدوین پیشنویس قانون سلامت روان
Objectives Mental health acts have been developed in different countries to protect human and civil rights of people with psychiatric disorders. In Iran, although there are some scattered laws within the existing body of laws, there is no separate mental health act. The aim of the present project was to prepare a draft pertaining to the mental health act in the country. Methods The draft of th...
متن کاملمقاومت کششی ، مقاومت ویژه و توان مالبندی موردنیاز گاو آهن قلمی (چیزل) ، در سطوح مختلف رطوبت خاک و عمق شخم
The effects of three levels of soil moisture content (8-10, 10-12 and 12-14% d.b.) and three levels of plowing depth (15, 20 and 25 cm) on draft, specific draft and drawbar power requirement of a 7-shank chisel plow in a clay loam soil were investigated. The experimental design was a randomized complete block design with a 3×4 factorial. The effect of plowing depth on all of the parameters ment...
متن کامل